Tobias Jansen / Mbed OS Lorawan_Version_0_1

This is an example application based on Mbed-OS LoRaWAN protocol APIs. The Mbed-OS LoRaWAN stack implementation is compliant with LoRaWAN v1.0.2 specification.

Dependencies:   Lorawan_Version_0_1

Dependents:   Lorawan_Version_0_1

main.cpp@62:35d41c8b9419, 2019-12-03 (annotated)

Committer:
jacktractive
Date:
Tue Dec 03 16:02:12 2019 +0000
Revision:
62:35d41c8b9419
Parent:
61:2b30d8e75fe7
Child:
63:2bfceda4c30c
GPS event und send alle 15s

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:7037ed05f54f 1 /**
mbed_official 0:7037ed05f54f 2 * Copyright (c) 2017, Arm Limited and affiliates.
mbed_official 0:7037ed05f54f 3 * SPDX-License-Identifier: Apache-2.0
mbed_official 0:7037ed05f54f 4 *
mbed_official 0:7037ed05f54f 5 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 0:7037ed05f54f 6 * you may not use this file except in compliance with the License.
mbed_official 0:7037ed05f54f 7 * You may obtain a copy of the License at
mbed_official 0:7037ed05f54f 8 *
mbed_official 0:7037ed05f54f 9 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:7037ed05f54f 10 *
mbed_official 0:7037ed05f54f 11 * Unless required by applicable law or agreed to in writing, software
mbed_official 0:7037ed05f54f 12 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 0:7037ed05f54f 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 0:7037ed05f54f 14 * See the License for the specific language governing permissions and
mbed_official 0:7037ed05f54f 15 * limitations under the License.
mbed_official 0:7037ed05f54f 16 */
mbed_official 0:7037ed05f54f 17 #include <stdio.h>
mbed_official 3:8c7198d1a2a1 18
mbed_official 0:7037ed05f54f 19 #include "lorawan/LoRaWANInterface.h"
mbed_official 0:7037ed05f54f 20 #include "lorawan/system/lorawan_data_structures.h"
mbed_official 0:7037ed05f54f 21 #include "events/EventQueue.h"
mbed_official 0:7037ed05f54f 22
mbed_official 0:7037ed05f54f 23 // Application helpers
mbed_official 0:7037ed05f54f 24 #include "DummySensor.h"
mbed_official 0:7037ed05f54f 25 #include "trace_helper.h"
mbed_official 0:7037ed05f54f 26 #include "lora_radio_helper.h"
mbed_official 0:7037ed05f54f 27
jacktractive 62:35d41c8b9419 28 #include <mbed.h>
jacktractive 62:35d41c8b9419 29
mbed_official 0:7037ed05f54f 30 using namespace events;
mbed_official 0:7037ed05f54f 31
mbed_official 12:5015dfead3f2 32 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
mbed_official 12:5015dfead3f2 33 // This example only communicates with much shorter messages (<30 bytes).
mbed_official 12:5015dfead3f2 34 // If longer messages are used, these buffers must be changed accordingly.
mbed_official 12:5015dfead3f2 35 uint8_t tx_buffer[30];
mbed_official 12:5015dfead3f2 36 uint8_t rx_buffer[30];
mbed_official 0:7037ed05f54f 37
mbed_official 0:7037ed05f54f 38 /*
mbed_official 0:7037ed05f54f 39 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 40 */
jacktractive 61:2b30d8e75fe7 41 #define TX_TIMER 100000
mbed_official 0:7037ed05f54f 42
mbed_official 0:7037ed05f54f 43 /**
mbed_official 0:7037ed05f54f 44 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 45 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 46 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 47 */
mbed_official 12:5015dfead3f2 48 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 49
mbed_official 0:7037ed05f54f 50 /**
mbed_official 0:7037ed05f54f 51 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 52 */
mbed_official 0:7037ed05f54f 53 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 54
mbed_official 0:7037ed05f54f 55 /**
mbed_official 0:7037ed05f54f 56 * Dummy pin for dummy sensor
mbed_official 0:7037ed05f54f 57 */
mbed_official 0:7037ed05f54f 58 #define PC_9 0
mbed_official 0:7037ed05f54f 59
jacktractive 62:35d41c8b9419 60 DigitalOut led(LED2);
jacktractive 61:2b30d8e75fe7 61
jacktractive 61:2b30d8e75fe7 62 #include "Fahrrad.h"
mbed_official 0:7037ed05f54f 63 /**
mbed_official 0:7037ed05f54f 64 * Dummy sensor class object
mbed_official 0:7037ed05f54f 65 */
mbed_official 0:7037ed05f54f 66 DS1820 ds1820(PC_9);
mbed_official 0:7037ed05f54f 67
mbed_official 0:7037ed05f54f 68 /**
mbed_official 0:7037ed05f54f 69 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 70 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 71 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 72 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 73 * well as application information event queuing.
mbed_official 0:7037ed05f54f 74 */
mbed_official 46:a124538e2891 75 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 76
mbed_official 0:7037ed05f54f 77 /**
mbed_official 0:7037ed05f54f 78 * Event handler.
mbed_official 0:7037ed05f54f 79 *
mbed_official 0:7037ed05f54f 80 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 81 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 82 */
mbed_official 0:7037ed05f54f 83 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 84
mbed_official 0:7037ed05f54f 85 /**
mbed_official 46:a124538e2891 86 * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper.
mbed_official 0:7037ed05f54f 87 */
mbed_official 2:dc95ac6d6d4e 88 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 89
mbed_official 0:7037ed05f54f 90 /**
mbed_official 0:7037ed05f54f 91 * Application specific callbacks
mbed_official 0:7037ed05f54f 92 */
mbed_official 0:7037ed05f54f 93 static lorawan_app_callbacks_t callbacks;
mbed_official 0:7037ed05f54f 94
mbed_official 0:7037ed05f54f 95 /**
mbed_official 0:7037ed05f54f 96 * Entry point for application
mbed_official 0:7037ed05f54f 97 */
mbed_official 46:a124538e2891 98 int main(void)
mbed_official 0:7037ed05f54f 99 {
jacktractive 62:35d41c8b9419 100
jacktractive 62:35d41c8b9419 101
jacktractive 62:35d41c8b9419 102
mbed_official 0:7037ed05f54f 103 // setup tracing
mbed_official 0:7037ed05f54f 104 setup_trace();
jacktractive 61:2b30d8e75fe7 105
jacktractive 61:2b30d8e75fe7 106 Starte_Fahrrad_Eventmanager(); //schonmal die Fahrrad Events Initialisieren falls wir hier auch ohne lorawan empfang was machen wollen
mbed_official 0:7037ed05f54f 107
mbed_official 0:7037ed05f54f 108 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 109 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 110
mbed_official 0:7037ed05f54f 111 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 112 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 113 printf("\r\n LoRa initialization failed! \r\n");
mbed_official 0:7037ed05f54f 114 return -1;
mbed_official 0:7037ed05f54f 115 }
mbed_official 0:7037ed05f54f 116
mbed_official 0:7037ed05f54f 117 printf("\r\n Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 118
mbed_official 0:7037ed05f54f 119 // prepare application callbacks
mbed_official 0:7037ed05f54f 120 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 121 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 122
mbed_official 0:7037ed05f54f 123 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 124 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 46:a124538e2891 125 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 126 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 127 return -1;
mbed_official 0:7037ed05f54f 128 }
mbed_official 0:7037ed05f54f 129
mbed_official 0:7037ed05f54f 130 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 131 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 132
mbed_official 0:7037ed05f54f 133 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 134 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 135 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 136 return -1;
mbed_official 0:7037ed05f54f 137 }
mbed_official 0:7037ed05f54f 138
mbed_official 0:7037ed05f54f 139 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 140
mbed_official 2:dc95ac6d6d4e 141 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 142
mbed_official 0:7037ed05f54f 143 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 46:a124538e2891 144 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
mbed_official 0:7037ed05f54f 145 } else {
mbed_official 0:7037ed05f54f 146 printf("\r\n Connection error, code = %d \r\n", retcode);
mbed_official 0:7037ed05f54f 147 return -1;
mbed_official 0:7037ed05f54f 148 }
mbed_official 0:7037ed05f54f 149
mbed_official 0:7037ed05f54f 150 printf("\r\n Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 151
mbed_official 0:7037ed05f54f 152 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 153 ev_queue.dispatch_forever();
mbed_official 3:8c7198d1a2a1 154
jacktractive 61:2b30d8e75fe7 155
mbed_official 3:8c7198d1a2a1 156 return 0;
mbed_official 0:7037ed05f54f 157 }
mbed_official 0:7037ed05f54f 158
mbed_official 0:7037ed05f54f 159 /**
mbed_official 0:7037ed05f54f 160 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 161 */
mbed_official 0:7037ed05f54f 162 static void send_message()
mbed_official 0:7037ed05f54f 163 {
mbed_official 0:7037ed05f54f 164 uint16_t packet_len;
mbed_official 0:7037ed05f54f 165 int16_t retcode;
mbed_official 56:39847849d219 166 int32_t sensor_value;
jacktractive 62:35d41c8b9419 167
jacktractive 62:35d41c8b9419 168
mbed_official 0:7037ed05f54f 169
mbed_official 0:7037ed05f54f 170 if (ds1820.begin()) {
mbed_official 0:7037ed05f54f 171 ds1820.startConversion();
mbed_official 0:7037ed05f54f 172 sensor_value = ds1820.read();
mbed_official 56:39847849d219 173 printf("\r\n Dummy Sensor Value = %d \r\n", sensor_value);
mbed_official 0:7037ed05f54f 174 ds1820.startConversion();
mbed_official 0:7037ed05f54f 175 } else {
mbed_official 0:7037ed05f54f 176 printf("\r\n No sensor found \r\n");
mbed_official 0:7037ed05f54f 177 return;
mbed_official 0:7037ed05f54f 178 }
mbed_official 0:7037ed05f54f 179
mbed_official 56:39847849d219 180 packet_len = sprintf((char *) tx_buffer, "Dummy Sensor Value is %d",
mbed_official 46:a124538e2891 181 sensor_value);
mbed_official 0:7037ed05f54f 182
mbed_official 2:dc95ac6d6d4e 183 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
mbed_official 47:b6d132f1079f 184 MSG_UNCONFIRMED_FLAG);
mbed_official 0:7037ed05f54f 185
mbed_official 0:7037ed05f54f 186 if (retcode < 0) {
mbed_official 0:7037ed05f54f 187 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 46:a124538e2891 188 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 189
mbed_official 26:f07f5febf97f 190 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 191 //retry in 3 seconds
mbed_official 26:f07f5febf97f 192 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 193 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 194 }
mbed_official 26:f07f5febf97f 195 }
mbed_official 0:7037ed05f54f 196 return;
mbed_official 0:7037ed05f54f 197 }
mbed_official 0:7037ed05f54f 198
mbed_official 0:7037ed05f54f 199 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 200 memset(tx_buffer, 0, sizeof(tx_buffer));
mbed_official 0:7037ed05f54f 201 }
mbed_official 0:7037ed05f54f 202
mbed_official 0:7037ed05f54f 203 /**
mbed_official 0:7037ed05f54f 204 * Receive a message from the Network Server
mbed_official 0:7037ed05f54f 205 */
mbed_official 0:7037ed05f54f 206 static void receive_message()
mbed_official 0:7037ed05f54f 207 {
mbed_official 47:b6d132f1079f 208 uint8_t port;
mbed_official 47:b6d132f1079f 209 int flags;
mbed_official 47:b6d132f1079f 210 int16_t retcode = lorawan.receive(rx_buffer, sizeof(rx_buffer), port, flags);
mbed_official 0:7037ed05f54f 211
mbed_official 0:7037ed05f54f 212 if (retcode < 0) {
mbed_official 0:7037ed05f54f 213 printf("\r\n receive() - Error code %d \r\n", retcode);
mbed_official 0:7037ed05f54f 214 return;
mbed_official 0:7037ed05f54f 215 }
mbed_official 0:7037ed05f54f 216
mbed_official 47:b6d132f1079f 217 printf(" RX Data on port %u (%d bytes): ", port, retcode);
mbed_official 0:7037ed05f54f 218 for (uint8_t i = 0; i < retcode; i++) {
mbed_official 47:b6d132f1079f 219 printf("%02x ", rx_buffer[i]);
mbed_official 0:7037ed05f54f 220 }
jacktractive 61:2b30d8e75fe7 221
jacktractive 61:2b30d8e75fe7 222 if (rx_buffer[0] == 0xa0) Licht_aus();
jacktractive 61:2b30d8e75fe7 223 if (rx_buffer[0] == 0xa1)Licht_an();
jacktractive 62:35d41c8b9419 224 if (rx_buffer[0] == 0xb1) Blinken_ein();
jacktractive 62:35d41c8b9419 225 if (rx_buffer[0] == 0xb0) Blinken_aus() ;
jacktractive 61:2b30d8e75fe7 226
jacktractive 62:35d41c8b9419 227 if (rx_buffer[0] == 0xc1)GPS_anfordern();
jacktractive 60:65d39aaa1714 228
mbed_official 47:b6d132f1079f 229 printf("\r\n");
mbed_official 47:b6d132f1079f 230
mbed_official 12:5015dfead3f2 231 memset(rx_buffer, 0, sizeof(rx_buffer));
mbed_official 0:7037ed05f54f 232 }
mbed_official 0:7037ed05f54f 233
mbed_official 0:7037ed05f54f 234 /**
mbed_official 0:7037ed05f54f 235 * Event handler
mbed_official 0:7037ed05f54f 236 */
mbed_official 0:7037ed05f54f 237 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 238 {
mbed_official 0:7037ed05f54f 239 switch (event) {
mbed_official 0:7037ed05f54f 240 case CONNECTED:
jacktractive 62:35d41c8b9419 241 led=1;
mbed_official 0:7037ed05f54f 242 printf("\r\n Connection - Successful \r\n");
jacktractive 62:35d41c8b9419 243
jacktractive 62:35d41c8b9419 244 ev_queue.call_every(15000, send_message);
jacktractive 62:35d41c8b9419 245
mbed_official 0:7037ed05f54f 246
mbed_official 0:7037ed05f54f 247 break;
mbed_official 0:7037ed05f54f 248 case DISCONNECTED:
mbed_official 0:7037ed05f54f 249 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 250 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 251 break;
mbed_official 0:7037ed05f54f 252 case TX_DONE:
mbed_official 0:7037ed05f54f 253 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 254 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
jacktractive 62:35d41c8b9419 255 //send_message();
mbed_official 0:7037ed05f54f 256 }
mbed_official 0:7037ed05f54f 257 break;
mbed_official 0:7037ed05f54f 258 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 259 case TX_ERROR:
mbed_official 0:7037ed05f54f 260 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 261 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 262 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 263 // try again
mbed_official 0:7037ed05f54f 264 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 265 send_message();
mbed_official 0:7037ed05f54f 266 }
mbed_official 0:7037ed05f54f 267 break;
mbed_official 0:7037ed05f54f 268 case RX_DONE:
mbed_official 0:7037ed05f54f 269 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 270 receive_message();
mbed_official 0:7037ed05f54f 271 break;
mbed_official 0:7037ed05f54f 272 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 273 case RX_ERROR:
mbed_official 0:7037ed05f54f 274 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 275 break;
mbed_official 0:7037ed05f54f 276 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 277 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 278 break;
mbed_official 26:f07f5febf97f 279 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 280 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 281 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 282 send_message();
mbed_official 26:f07f5febf97f 283 }
mbed_official 26:f07f5febf97f 284 break;
mbed_official 0:7037ed05f54f 285 default:
mbed_official 0:7037ed05f54f 286 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 287 }
mbed_official 0:7037ed05f54f 288 }
mbed_official 0:7037ed05f54f 289
mbed_official 0:7037ed05f54f 290 // EOF